I am Professor with the Research Unit for Active Living at the University of Southern Denmark. My research focuses on studying the relation between the built and natural environment and human behavior, and in particular evaluating the effect of changes to the environment on behavior. One of my interest lies in developing methods to objectively describe behavior and the environment that behavior takes place in. Much of my work builds on intervention studies or natural experiments that involved changes to the built environment, e.g. creating or renovating schoolyards, urban green spaces, public open space, and bicycling facilities.